READ POWER CONTROL
    21.
    发明申请
    READ POWER CONTROL 审中-公开
    读功率控制

    公开(公告)号:US20120170432A1

    公开(公告)日:2012-07-05

    申请号:US12981270

    申请日:2010-12-29

    IPC分类号: G11B7/00

    摘要: Techniques are provided for controlling the reading of micro-holograms from a holographic disk based on a target data layer to be read in the disk. Reading a target data layer which is relatively deeper in the disk (e.g., farther from an optical head emitting a reading beam) may involve using a higher power reading beam to compensate for power attenuation of the returned reading beam. For example, a power adjustment module may be used to dynamically adjust a reading laser emitting the reading beam, based on the dynamically changing target data layer. By compensating for power attenuation in deeper target data layers, the variance of power in the returned reading beams may be decreased, possibly improving the bit error rate in micro-hologram reading techniques.

    摘要翻译: 提供技术用于基于要在盘中读取的目标数据层来控制来自全息盘的微全息图的读取。 读取在盘中相对较深的目标数据层(例如,从发出读取光束的光学头越远)可以涉及使用更高功率的读取光束来补偿返回的读取光束的功率衰减。 例如,功率调整模块可以用于基于动态改变的目标数据层来动态地调整发射读取光束的读取激光器。 通过补偿较深的目标数据层中的功率衰减,返回的读取光束中的功率变化可能会降低,可能会改善微全息图读取技术中的误码率。

    System and method for storage of data in circular data tracks on optical discs
    24.
    发明授权
    System and method for storage of data in circular data tracks on optical discs 有权
    用于在光盘上的圆形数据轨道中存储数据的系统和方法

    公开(公告)号:US08331210B2

    公开(公告)日:2012-12-11

    申请号:US12342794

    申请日:2008-12-23

    IPC分类号: G11B7/00

    摘要: The present techniques provide methods and systems for reading and processing a data signal read from an optical data disc. In embodiments, an optical reader system may read data bits from a data ring in the disc. The data rings may be concentric, and a beginning of a sequence of data on the data ring may be in substantially the same position as an ending of the sequence. The reader may identify a data ring and begin the read process on the targeted data ring, and may end the read process when the reader reaches the starting point. The data sequence read from the data ring may be decoded to form a bit stream, which may be provided to various output devices. A circular trellis formed from the bit stream may enable the reading of a targeted data sequence without additional tail bits to improve data transmission efficiency.

    摘要翻译: 本技术提供了用于读取和处理从光学数据盘读取的数据信号的方法和系统。 在实施例中,光学读取器系统可以从盘中的数据环读取数据位。 数据环可以是同心的,并且数据环上的数据序列的开始可以与序列的结尾基本上在相同的位置。 读取器可以识别数据环并且在目标数据环上开始读取过程,并且当读取器到达起始点时可以结束读取过程。 可以对从数据环读取的数据序列进行解码以形成可被提供给各种输出设备的比特流。 从比特流形成的圆形网格可以使得能够读取目标数据序列而不需要额外的尾比特来提高数据传输效率。

    SYSTEM AND METHOD FOR STORAGE OF DATA IN CIRCULAR DATA TRACKS ON OPTICAL DISCS
    25.
    发明申请
    SYSTEM AND METHOD FOR STORAGE OF DATA IN CIRCULAR DATA TRACKS ON OPTICAL DISCS 有权
    用于存储光盘上圆形数据轨道中的数据的系统和方法

    公开(公告)号:US20100157757A1

    公开(公告)日:2010-06-24

    申请号:US12342794

    申请日:2008-12-23

    IPC分类号: G11B15/52

    摘要: The present techniques provide methods and systems for reading and processing a data signal read from an optical data disc. In embodiments, an optical reader system may read data bits from a data ring in the disc. The data rings may be concentric, and a beginning of a sequence of data on the data ring may be in substantially the same position as an ending of the sequence. The reader may identify a data ring and begin the read process on the targeted data ring, and may end the read process when the reader reaches the starting point. The data sequence read from the data ring may be decoded to form a bit stream, which may be provided to various output devices. A circular trellis formed from the bit stream may enable the reading of a targeted data sequence without additional tail bits to improve data transmission efficiency.

    摘要翻译: 本技术提供了用于读取和处理从光学数据盘读取的数据信号的方法和系统。 在实施例中,光学读取器系统可以从盘中的数据环读取数据位。 数据环可以是同心的,并且数据环上的数据序列的开始可以与序列的结尾基本上在相同的位置。 读取器可以识别数据环并且在目标数据环上开始读取过程,并且当读取器到达起始点时可以结束读取过程。 可以对从数据环读取的数据序列进行解码以形成可被提供给各种输出设备的比特流。 从比特流形成的圆形网格可以使得能够读取目标数据序列而不需要额外的尾比特来提高数据传输效率。

    System and method for determining whether a locomotive or rail engine is coupled to a rail car or other engine
    27.
    发明授权
    System and method for determining whether a locomotive or rail engine is coupled to a rail car or other engine 有权
    用于确定机车或轨道发动机是否耦合到轨道车辆或其他发动机的系统和方法

    公开(公告)号:US07845504B2

    公开(公告)日:2010-12-07

    申请号:US11317067

    申请日:2005-12-23

    IPC分类号: B61G5/06

    摘要: An apparatus and method for indicating whether a coupler of a locomotive is in a coupled or uncoupled state is provided. The apparatus comprising: a sensor positioned on a portion of the coupler, wherein the sensor provides a real-time signal indicative of either a coupled or an uncoupled state of a coupler, wherein the signal is transmitted wirelessly by a transmitter in operable communication with the sensor. The method comprising: providing a signal indicative of the presence or proximity of a second coupler to the first coupler, the signal being provided by a sensor configured to provide the signal as the state of the coupler has changed; transmitting the signal wirelessly to a controller; processing the signal with a control algorithm resident upon the controller; and providing visually perceivable indication of the position of the coupler.

    摘要翻译: 提供一种用于指示机车的耦合器是否处于耦合或非耦合状态的装置和方法。 所述装置包括:位于所述耦合器的一部分上的传感器,其中所述传感器提供指示耦合器的耦合或非耦合状态的实时信号,其中所述信号由与所述耦合器可操作地通信的发射机无线地传输 传感器。 该方法包括:提供指示第二耦合器到第一耦合器的存在或接近的信号,所述信号由配置成随着耦合器的状态改变而提供信号的传感器提供; 将信号无线地发送到控制器; 用驻留在控制器上的控制算法处理信号; 并且提供耦合器的位置的视觉上可感知的指示。